FIELD: measuring equipment.
SUBSTANCE: device for detecting radioactive radiation, which includes an ionisation chamber containing a cathode and an anode. Ionisation chamber detects radiation passing into it. Proposed device comprises outer case limiting hollow inner volume accommodating ionisation chamber. Outer case includes at least two layers. At least one of layers provides shielding from electromagnetic radiation of hollow internal volume and enclosed in it ionization chamber.
EFFECT: technical result is high sensitivity of ionisation chamber when isolating ionisation chamber from surrounding housing.
19 cl, 3 dwg
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